package com.itheima.reggie.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.itheima.reggie.common.CustomException;
import com.itheima.reggie.entity.Category;
import com.itheima.reggie.entity.Dish;
import com.itheima.reggie.entity.Setmeal;
import com.itheima.reggie.mapper.CategoryMapper;
import com.itheima.reggie.service.CategoryService;
import com.itheima.reggie.service.DishService;
import com.itheima.reggie.service.SetmealService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

@Service
public class CategoryServiceImpl extends ServiceImpl<CategoryMapper, Category> implements CategoryService {

    @Autowired
    private DishService dishService;

    @Autowired
    private SetmealService setmealService;

    @Override
    public void remove(Long id) {

        LambdaQueryWrapper<Dish> lqw = new LambdaQueryWrapper<>();
        lqw.eq(Dish::getCategoryId, id);
        if (dishService.count(lqw) > 0) {
            throw new CustomException("该分类下有菜品,不能删除");
            //return R.error("该分类下有菜品,不能删除");
        }

        LambdaQueryWrapper<Setmeal> lqwMeal = new LambdaQueryWrapper<>();
        lqwMeal.eq(Setmeal::getCategoryId, id);
        if (setmealService.count(lqwMeal) > 0) {
            throw new CustomException("该分类下有套餐,不能删除");
            //return R.error("该分类下有套餐,不能删除");
        }

        super.removeById(id);

        //return super.removeById(id);
    }
}

